CVE-2021-32540 : What You Need to Know
Learn about CVE-2021-32540 affecting Hundred Plus 101EIP system. Find out the impact, technical details, affected versions, and mitigation steps for this Medium severity stored XSS vulnerability.
Hundred Plus 101EIP - Stored XSS-2 is a CVE identified on May 28, 2021, with a base score of 5.4 (Medium Severity). This vulnerability allows authenticated users to perform a stored XSS attack by injecting JavaScript through the add announcement function in the 101EIP system.
Understanding CVE-2021-32540
This section provides insights into the nature of the CVE and its impact.
What is CVE-2021-32540?
The CVE-2021-32540 vulnerability occurs due to the lack of proper filtering of special characters in the 101EIP system. This flaw enables authenticated users to inject malicious JavaScript, leading to a stored XSS attack.
The Impact of CVE-2021-32540
The impact of this CVE is rated as Medium severity with a CVSS base score of 5.4. It allows attackers to execute arbitrary scripts in the context of authenticated users, potentially leading to the theft of sensitive information or unauthorized actions.
Technical Details of CVE-2021-32540
In this section, the technical aspects of the vulnerability are discussed.
Vulnerability Description
The vulnerability arises from the failure to properly filter special characters in the add announcement function of the 101EIP system, enabling malicious JavaScript injection.
Affected Systems and Versions
The affected product is 101EIP by Hundred Plus, specifically version RELEASE_200925.
Exploitation Mechanism
To exploit this vulnerability, authenticated users can input malicious JavaScript code into the announcement function, which is executed when viewed by other users, leading to a stored XSS attack.
Mitigation and Prevention
To prevent exploitation of CVE-2021-32540, certain mitigation strategies can be employed.
Immediate Steps to Take
- Update the 101EIP system to version 210426 as a patch to address this vulnerability.
Long-Term Security Practices
- Implement input validation mechanisms to sanitize user input and prevent script injection attacks.
Patching and Updates
- Regularly monitor vendor releases for security updates and apply patches promptly to mitigate the risk of such vulnerabilities.